package com.yeren.thread.changeState.priority;

/**
 * Java线程：线程的调度-优先级
 * 与线程休眠类似，线程的优先级仍然无法保障线程的执行次序。
 * 只不过，优先级高的线程获取CPU资源的概率较大，优先级低的并非没机会执行。
 * 线程的优先级用1-10之间的整数表示，数值越大优先级越高，默认的优先级为5。
 * 在一个线程中开启另外一个新线程，则新开线程称为该线程的子线程，子线程初始优先级与父线程相同。
 */
public class TestPriority {

	public static void main(String[] args) {
		Thread t1 = new MyThread1();
		Thread t2 = new Thread(new MyRunnable());
		t1.setPriority(Thread.MAX_PRIORITY);
		t2.setPriority(Thread.MIN_PRIORITY);

		t2.start();
		t1.start();
	}
}

class MyThread1 extends Thread {
	public void run() {
		for (int i = 0; i < 10; i++) {
			System.out.println("线程1第" + i + "次执行！");
			try {
				Thread.sleep(100);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
	}
}

class MyRunnable implements Runnable {
	public void run() {
		for (int i = 0; i < 10; i++) {
			System.out.println("线程2第" + i + "次执行！");
			try {
				Thread.sleep(100);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
	}
}